IEA (2021), Global annual average change in fossil fuels production by fuel, 2018-2019 and 2019-2020, IEA, Paris https://www.iea.org/data-and-statistics/charts/global-annual-average-change-in-fossil-fuels-production-by-fuel-2018-2019-and-2019-2020, Licence: CC BY 4.0